What Is Cyber Security in Cloud Computing

What Is Cyber Security in Cloud Computing

Cyber security in cloud computing is the practice of protecting data, applications, and infrastructure that run on cloud platforms from unauthorized access, theft, and disruption. It combines technology, policies, and identity controls to keep cloud-hosted workloads safe across private, public, and hybrid environments.

Why Cloud Security Differs from Traditional Security

In traditional on-premises setups, organizations own and control the hardware. In cloud computing, the provider manages the physical infrastructure while customers secure what they put on top of it. This shift creates new attack surfaces, such as misconfigured storage buckets, exposed APIs, and over-permissioned identities that attackers actively target.

The Shared Responsibility Model

Cloud security operates on a shared responsibility model. The provider secures the underlying platform, networking, and data centers, while the customer is responsible for configuring access controls, encrypting data, and managing identities. The exact split depends on the service model:

• IaaS: Provider secures infrastructure; customer handles OS, apps, and data.
• PaaS: Provider adds runtime and middleware; customer manages apps and data.
• SaaS: Provider secures the application; customer controls user access and data.

Core Pillars of Cloud Cyber Security

Effective cloud security rests on several interconnected pillars. Identity and access management controls who can use resources and what they can do. Data encryption protects information both in transit and at rest. Network security filters traffic and isolates workloads. Continuous monitoring and logging detect anomalies, while incident response plans ensure teams can act quickly when a breach occurs.

Common Threats in Cloud Environments

Cloud environments face unique threats, including misconfigurations, insider risks, and account hijacking. Attackers exploit weak authentication, poorly scoped permissions, and unpatched APIs to move laterally across cloud accounts. Data exfiltration and ransomware targeting cloud backups have also grown as organizations scale their cloud adoption.

Key Strategies for Stronger Cloud Security

Organizations can strengthen their cloud posture by adopting zero-trust architecture, enforcing least-privilege access, and automating security checks across the cloud infrastructure. Regular vulnerability scanning, infrastructure-as-code security reviews, and cloud-native security tools help teams detect risks before they become breaches. Training teams on cloud-specific threats closes the human gap that many attacks still rely on.